<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

</body>
<script>
  let s1 = "abc";
  let s2 = "ABC";
  console.log(s1 + "-" + s2);
  let html = '<h3 title="' + s1 + '">' + s2 + '</h3>';
  console.log(html)
  console.log(`${s1}-${s2}`)
  let html2 = `<h3 title="${s1}">${s2}</h3>`;
  console.log(html2);


  function setMsg() {
    return "我是函数";
  }
  console.log(`调用方法setMsg的结果是：${setMsg()}`)

  let html3 = `<div>
<h3>哈哈哈</h3>
<div>
<span>heihei</span>
</div>
</div>`;
  console.log(html3);
</script>
</html>